distribute into three ranks 分成三列横队
includes three ranks 包括三个层次
three classes and nine ranks 三等九则
three ranks
三个等级
以上为机器翻译结果，长、整句建议使用 人工翻译 。
While this remains a positive score, a year-by-year comparison shows that the U.S. dropped three ranks from 2011 to 2012.
FORBES: America Is Innovation
Only three senators broke ranks: Sen.
CNN: Obama warns of turning a 'crisis into a catastrophe'
They marched in orderly ranks, three abreast, like emperor penguins in a nature film.
NEWYORKER: Days of Rage
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